Few resources, old-growth forest allowed for fire’s growth

This drone photo provided by Michael Mann shows the Oregon Capitol building, with its “Oregon Pioneer” bronze sculpture atop the dome, with skies filled with smoke and ash from wildfires as a backdrop in Salem, Ore., on Sept. 8, 2020. Fires continued to rage across the West Coast on Monday, Sept. 21, 2020. (Michael Mann via AP)

Dale Burton, of Leona Valley, tries to put out the fire that continues to smolder at his friend Cheryl Poindexter’s property on Monday, Sept. 21, 2020 after the Bobcat fire burned her home of 27 years and the 11 acre property where she ran an animal rescue in Juniper Hills, Calif. (Sarah Reingewirtz/The Orange County Register via AP)

LOS ANGELES — A lack of firefighting resources in the hours after it was sparked allowed a fast-moving wildfire to make an unprecedented run through Southern California mountains and eventually find fuel in old-growth trees to become one of Los Angeles County’s largest fires ever, an official said Tuesday.